<?php

class PrizeController extends Controller
{
	public $defaultAction = 'admin';

	public $layout = '/layouts/main';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('view','create','update','delete','admin'),
				'expression'=>'Yii::app()->user->isAdmin',
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view',array(
			'model'=>$this->loadModel($id),
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model = new Prize();
		$formModel = new PrizeForm('create');

		$this->performAjaxValidation($formModel);

		if(isset($_POST['PrizeForm']))
		{
			$formModel->attributes=$_POST['PrizeForm'];
			$formModel->upload = CUploadedFile::getInstance($formModel,'upload');
			if ($formModel->validate())
			{
				$model->attributes = $formModel->attributes;

				if (($file = $formModel->upload) !== null)
					$model->saveImage($file);

				$model->save(false);
				$this->redirect(array('view','id'=>$model->id));
			}
		}

		$formModel->attributes = $model->attributes;

		$this->render('create',array(
			'model'=>$model,
			'formModel'=>$formModel,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model = $this->loadModel($id);
		$formModel = new PrizeForm('update');

		$this->performAjaxValidation($formModel);

		if (isset($_POST['PrizeForm']))
		{
			$formModel->attributes=$_POST['PrizeForm'];
			$formModel->upload = CUploadedFile::getInstance($formModel,'upload');
			if ($formModel->validate())
			{
				$model->attributes = $formModel->attributes;

				if (($file = $formModel->upload) !== null)
					$model->saveImage($file);

				$model->save(false);
				$this->redirect(array('view','id'=>$model->id));
			}
		}

		$formModel->attributes = $model->attributes;

		$this->render('update',array(
			'model'=>$model,
		    'formModel'=>$formModel,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Prize('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Prize']))
			$model->attributes=$_GET['Prize'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer $id the ID of the model to be loaded
	 * @return Prize
	 */
	public function loadModel($id)
	{
		$model=Prize::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel $model the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='prize-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
